Pump



A. E. STANLEY.

PUMP.

APPLICATION FILED Nov, 29, w20.

. 1,388,780. y Patented Aug. 23, 1921.

2 SHEETS-SHEET 1.

A. E. STANLEY. f

PUMP.

APPucATloN FILED Novt 29, 19'20. 1,388,780. Patented Aug. 23, 1921.

2 SHEETS-SHEET 2.

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4 A UNITED sTArEs Paritair'l i OFFICE.

. ARTHURE. STANLEY, or ELKHART, INDIANA.

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Appncation' med-'November 29, 1920. serial No. 427,058.

T0 all whom t mag/'concern u i.

Be it known that I, ARTHUR E. STANLEY, a citizen of the United States, residing at Elkhart, in the county of Elkhart and State of l pump and one object of the invention is to provide a pump having the pump body provided with an improved construction whereby opposed pump bodies may be placed upon opposite sides of an actuating mechanism and between a suctionchamber and a discharge chamber, with the two chambers serving to brace the pumpv bodies and inclosino' the valve mechanism of the bodies whereby the valves may be easily and quickly removed and cleaned or repaired by simply removing the suction chamber or discharge chamber.

Another object of the invention is to so construct the pump that the piston of each pump body may be slidably mounted in a cylinder which extends longitudinally of the pump body with its end portions communieating with chambers in the inner and outer end portions thereof, the chambers have valve controlled ports leading through the upper andlower endso the pump body and communicating with the interiors of the suci tion chamber and discharge chamber.

Another object of the invention 1s to provide a pump which will be double acting and will bel simple in construction and not liable to readily get out of order.

This inventionv is illustated in the accompanying drawings, wherein:

Figure 1 is a view showing the improved pump partially in side elevation and partially in longitudinal vertical section.

Fig. 2 isa view showing the improved pump partially in top plan with the discharge chamber or manifold removed and partially in longitudinal transverse section.

Fig. 3 is a longitudinal transverse sectional view taken along the line 8-3 of Fig. 1. A Y

Fig. 4 is a vertical sectional view taken along the line 4--4 of Fig. 1.

This pump is provided with a base 1 which carries the pump bodies2 located adjacent the ends of the base with the end portions 'specification of Letters ratent.

Patented Aug. 23, 1,921.

of the base extending beyond the` pump bodies Vand provided with openings 3 through which fasteners will lbe passed. Bearings 4 are carried by the base intermediate ythe pump bodies and these bearings rotatably support a shaft 5 upon which will be mounted a fly wheel 6. An eccentric or disk 7 is mounted upon the shaft 5 between the bearings 4 and has mounted thereon a strap 8 and a second strap 9 each ofwhich is pro vided with a neck loosely connected with a fork 10 byl means of a knuckle pin 11. These forks 10 are carried by the piston rods 12 and from an inspection of Fig. 1 it will be readily seen that when the pump'is in operation and the shaft 5 rotated, the piston rods will be moved longitudinally of the base in opposite directions.

- Each of the pump bodies is provided with a cylinder 13 which extends llongitudinally of the pump body and terminates short of the inner and outer walls thereof and serving not only as a cylinder Vbut further as a partition dividing the pum bodies into end compartments 14 and15. he outer wall of the pump body is open so that the lining or bushing 16`may be placed in the cylinder and the piston 17 put in place and this open end is closed by the removable cylinder cap or head 18. In order to provide a tight packing around the piston rod 12 there has ,21 and a packing nut 22 which when screwed tight will force the gland 20 inwardly and thus tightly compress the packing about the piston rod. It will thus be seen that the pump body is so constructed that the piston can be easily put in place through the opening in the outer wall and the cylinder head then put in place, the packing,.gland 20 and packing nutbeing then put in place and tightened and the piston rod connected with its fork. Y

The upper end of the pump body has been provided with'ports 23 which form outlets for the compartments 14 and 15 and each of these compartments is provided with a valve seat 24 and a perforated guide plate 25, a valve 2G being placed in the port and yieldablyheld kin a closed position by the spring 2( which is positioned about the valve stem 28. This stem 28 extends through the guide plate 25 and thus guides the movement of the valve when opening; and closing. The lower end of the pump body is also provided with ports 29 which hav-e enlarged lower end portions forming valve chambers 30 in each of which will be placed a valve seat 31 and a guide plate 32. rlhe valve 33 which controls passage of fluid through rthe ports 29 is placed between the-valve seat 31 and the guide plate 32 and provided with a stem 8a which passes. through the guide plates 32 and has the springs 35 placed about it and engaging the guide plate and the valve so that the valve is yieldably held in a closed position.

A suction chamber 36 which forms an inlet manifold and is provided with an inlet opening 37 extends longitudinally of the base beneath the same and is secured by removable fasteners 38 so that the suction chamber can be removed when desired. From an inspection of Fig. l, it will be seen that the suction chamber incloses the valve controlled ports 29 which extend through the lower ends of the pump bodies and that therefore when the pump is 'in operation fluid in the suction chamber can be drawn through the ports 29 into the compartments la and l5. A discharge chamber or manifold extends longitudinally of the pump and has its end portions resting upon and secured to the upper ends of the pump bodies by the removable fasteners 40, the end portions of the discharge chamber inclosing the-valve controlled outlet ports 23 which extend through the upper ends of the pump bodies.V

When this pump is in operation, the shaft 5 is rotated by any suitable means and as this shaft rotates reciprocating movement is imparted to the piston rods l2 with the rods moving in opposite directions. As each piston reeiprocates in its cylinder, fluid from the suction chamber will be drawn into the lower end portions ofthe compartments 14;

and l5 and forced out throuoh the u er b end portions thereof, the fluid being drawn into one compartment while it is being forced out of the second compartment. The discharge chamber or manifold serves not only as a manifold but also as a brace for the upper ends of the pump bodies. When it is necessary to clean or repair the pump, the two chambers 36 and 39 can be removed and access may be had to the valves. By removing the cylinder heads access may be had to the interiors of the cylinders and the pistons removed by disconnecting the piston rods from the forks and drawing the pistons out through the open ends of the cylinders. A pump has thus been provided which will be very easy to clean andrepair and which will be very strongly braced against vibration.

I claim: l. A pump comprising a base, opposed pump bodies carried by said base and held in spaced relation thereby, each pump body having a cylinder extending longitudinally through the same and communicating with chambers at the inner and `outer ends of the pump body, the chambers extending annularly about the-end portions of said cylinder and provided with ports leading through the upper and lower ends of the pump body, a suction chamber removably carried by the base and inclosing the ports at the lower ends of the pump bodies, a discharge mani fold removably connected with and bracing the pump bodies and inclosing the ports at the upper ends of the pump bodies, removable heads for the outer ends of said cylinders, valve elements insaid ports yieldably held in a closed position and removable when the suction chamber and discharge manifold are removed, pistons in said cylinders having shafts extending through the inner walls of the pump bodies, and actuating means connected with piston shafts.

2. A pump comprising a base, opposed pump bodies carriedby the base in spaced relation, actuating means mounted between the pump bodies, each pump body having a cylinder extending longitudinally through the same and communicating with chambers at the inner and outer ends of the pump body, each chamber having ports extending through the upper vand lower ends of the pump body, asuction chamber removably carried by the base and inclosing the ports at the lower ends of the pump bodies, a discharge chamber removably carried by and bracing the pump bodies and inclosing the ports in the upper ends thereof, valve seats removably mounted in said ports, guides in said ports, valves between said guides and seatsand yieldably held in engagement with the seats to normally close the ports, the seats, guides and valves being removable through the upper and lower ends of the pump body when the suction and discharge chambers are removed, and pistons in said cylinders having shafts extending through the inner` ends of the pump bodies and connected with said actuating means.

3. A pump including pump bodies having compartments in their inner and outer end portions and each having a cylinder extending between and communicating with the end compartments, the pump bodies being further provided with valve controlled ports in their upper and lower ends communicating with the end compartments and openings through the upper and lower ends of the pump bodies, valves in said ports removable through the upper and lower ends of the pump bodies, pistons sliding inthe cylinders and having shafts extending through the inner walls of the pump bodies, a suction chamber having its end portions removably connected with the lower ends of said pump bodies and inclosing the ports therein, a dscharge chamber having its end portions removably connected with the upper ends of the pump bodies and inclosng the ports therein, and operating means between the pump bodies connected with the piston shafts.

In testimony whereof I have hereunto set my hand in the presence of two subscribing Witnesses. s Y

, ARTHUR E. STANLEY. Witnesses: Y

W. R. BERON,

GEORGE W. STANLEY. 

